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<meta name="description" content="#####JavaCV #####JavaCpp #####如果下载不了，可以下载此处 ####1. 使用注意：存储8张源图的路径是”/sdcard/ScreenRecord/temp/“， 存储输出的视频文件路径为”/sdcard/ScreenRecord/“，事先应现在”/sdcard/ScreenRecord/temp/“放置8张图片，当然本例中是8张，可以根据自己的需求变化">
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          <h1 class="post-title" itemprop="name headline">Android-JavaCV(图片转视频)</h1>
        

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        <p>#####<a href="http://www.softpedia.com/get/Programming/Other-Programming-Files/JavaCV.shtml" target="_blank" rel="noopener">JavaCV</a></p>
<p>#####<a href="http://bytedeco.org/" target="_blank" rel="noopener">JavaCpp</a></p>
<p>#####如果下载不了，可以<a href="http://download.csdn.net/download/mazaiting/10200300" target="_blank" rel="noopener">下载此处</a></p>
<p>####1. 使用<br><strong>注意：存储8张源图的路径是”/sdcard/ScreenRecord/temp/“， 存储输出的视频文件路径为”/sdcard/ScreenRecord/“，事先应现在”/sdcard/ScreenRecord/temp/“放置8张图片，当然本例中是8张，可以根据自己的需求变化</strong></p>
<a id="more"></a>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br></pre></td><td class="code"><pre><span class="line">public class MainActivity extends AppCompatActivity &#123;</span><br><span class="line">    public static final String IMAGE_TYPE = &quot;.png&quot;;</span><br><span class="line">    @Override</span><br><span class="line">    protected void onCreate(Bundle savedInstanceState) &#123;</span><br><span class="line">        super.onCreate(savedInstanceState);</span><br><span class="line">        setContentView(R.layout.activity_main);</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    public void start(View view) &#123;</span><br><span class="line">        imageToMp4();</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    /**</span><br><span class="line">     * 图片转视频</span><br><span class="line">     */</span><br><span class="line">    private void imageToMp4() &#123;</span><br><span class="line">        // 生成的新文件名</span><br><span class="line">        String newFileName = &quot;test_&quot; + System.currentTimeMillis() + &quot;.mp4&quot;;</span><br><span class="line">        // 保存的路径</span><br><span class="line">        String temp = null;</span><br><span class="line">        final double frameRate = 5;</span><br><span class="line">        try &#123;</span><br><span class="line">            temp = new FileUtils().getSDCardRoot() + &quot;ScreenRecord&quot;</span><br><span class="line">                    + File.separator + newFileName;</span><br><span class="line">        &#125; catch (FileUtils.NoSdcardException e1) &#123;</span><br><span class="line">            e1.printStackTrace();</span><br><span class="line">        &#125;</span><br><span class="line">        final String savePath = temp;</span><br><span class="line">        new Thread() &#123;</span><br><span class="line">            @Override</span><br><span class="line">            public void run() &#123;</span><br><span class="line">                Log.d(&quot;test&quot;, &quot;开始将图片转成视频啦...frameRate=&quot; + frameRate);</span><br><span class="line">                try &#123;</span><br><span class="line">                    // 临时文件路径即存储源图片的路径</span><br><span class="line">                    String tempFilePath = new FileUtils().getSDCardRoot()</span><br><span class="line">                            + &quot;ScreenRecord/temp&quot; + File.separator;</span><br><span class="line">                    Log.i(&quot;test&quot;, &quot;tempFilePath=&quot; + tempFilePath);</span><br><span class="line">                    Bitmap testBitmap = BitmapFactory.decodeFile(tempFilePath</span><br><span class="line">                            + &quot;head1&quot; + MainActivity.IMAGE_TYPE);</span><br><span class="line">                     //创建一个记录者</span><br><span class="line">                    FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(</span><br><span class="line">                            savePath, testBitmap.getWidth(),</span><br><span class="line">                            testBitmap.getHeight());</span><br><span class="line">                    // 设置视频格式</span><br><span class="line">                    recorder.setFormat(&quot;mp4&quot;);</span><br><span class="line">                    // 录像帧率</span><br><span class="line">                    recorder.setFrameRate(frameRate);</span><br><span class="line">                    // 记录开始</span><br><span class="line">                    recorder.start();</span><br><span class="line"></span><br><span class="line">                    int index = 0;</span><br><span class="line">                    while (index &lt; 8) &#123;</span><br><span class="line">                         // 获取图片--图片格式为head1.png,head2.png...head8.png</span><br><span class="line">                        opencv_core.IplImage image = cvLoadImage(tempFilePath</span><br><span class="line">                                + &quot;head&quot; + index</span><br><span class="line">                                + MainActivity.IMAGE_TYPE);</span><br><span class="line">                        recorder.record(image);</span><br><span class="line">                        index++;</span><br><span class="line">                    &#125;</span><br><span class="line">                    Log.d(&quot;test&quot;, &quot;录制完成....&quot;);</span><br><span class="line">                    // 录制结束</span><br><span class="line">                    recorder.stop();</span><br><span class="line">                &#125; catch (FileUtils.NoSdcardException | FrameRecorder.Exception e) &#123;</span><br><span class="line">                    e.printStackTrace();</span><br><span class="line">                &#125;</span><br><span class="line">            &#125;</span><br><span class="line">        &#125;.start();</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br><span class="line">``` </span><br><span class="line">FileUtils.java</span><br></pre></td></tr></table></figure>
<p>public class FileUtils {<br>    private String SDCardRoot;<br>    private static boolean isCardExist;</p>
<pre><code>public FileUtils() throws NoSdcardException {
    getSDCardRoot();
}

public String getSDCardRoot() throws NoSdcardException{
    if(isCardExist()){
        SDCardRoot = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator;
    }else{
        throw new NoSdcardException();
    }
    return SDCardRoot;
}

public static boolean isCardExist(){
    isCardExist = Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)?true:false;
    return isCardExist;    
}
public File createFileInSDCard(String fileName, String dir)
        throws IOException {
    File file = new File(SDCardRoot + dir + File.separator + fileName);
    if(!file.exists()){    
        file.getParentFile().mkdirs();
        file.createNewFile();
    }
    return file;
}
public File creatSDDir(String dir) {
    File dirFile = new File(SDCardRoot + dir + File.separator);
    if(!dirFile.exists()){
        dirFile.mkdirs();
    }

    return dirFile;
}
public boolean filterFileExist(String path, String filter) {
    File file = new File(SDCardRoot + path + File.separator);
    if (file.exists() &amp;&amp; file.isDirectory()) {

        String[] fileNames = file.list(new FilenameFilter() {
            public boolean accept(File dir, String filename) {
                return filename.endsWith(&quot;.png&quot;);
            }
        });
        if (fileNames.length &gt; 0) {
            return true;
        } else {
            return false;
        }
    } else {
        return false;
    }
}

/**
 * 
 */
public boolean isFileExist(String fileName, String path) {
    File file = new File(SDCardRoot + path + File.separator + fileName);
    return file.exists();
}
public File getFile(String fileName,String path){
    File file = new File(SDCardRoot + path + File.separator + fileName);
    return file;
}
public void deleteFile(String fileName, String path) {
    File file = new File(SDCardRoot + path + File.separator + fileName);
    boolean result = file.delete();
}

public void closeInputStream(InputStream inputStream){
    if(inputStream!=null){
        try {
            inputStream.close();
        } catch (IOException e) {
            Log.e(&quot;error&quot;, &quot;close failed&quot;);
            e.printStackTrace();
        }
    }
}
public class NoSdcardException extends Exception{

}


/**
 * 删除文件夹中的内容,不删除文件夹本身
 * @param path
 */
public static void deleteDirectoryContent(String path){
    Log.w(&quot;test&quot;,&quot;deleteDirectory..&quot;+path);
    File file=new File(path);
    if(!file.exists()){
        return;
    }
    String fPath=file.getAbsolutePath();
    if(file.isDirectory()){
        String[] files=getDirectoryFiles(path);
        if(files==null){
            deleteFile(path);
            return;
        }
        for(String str:files){
            str=fPath+&quot;/&quot;+str;
            file=new File(str);
            if(file.isDirectory()){
                deleteDirectory(str);
            }else if(file.isFile()){
                deleteFile(str);
            }
        }
</code></pre><p>//            deleteFile(path);<br>        }else if(file.isFile()){<br>            deleteFile(path);<br>        }<br>    }</p>
<pre><code>/**
 * 删除文件夹中的内容
 * @param path
 */
public static void deleteDirectory(String path){
    Log.w(&quot;test&quot;,&quot;deleteDirectory..&quot;+path);
    File file=new File(path);
    if(!file.exists()){
        return;
    }
    String fPath=file.getAbsolutePath();
    if(file.isDirectory()){
        String[] files=getDirectoryFiles(path);
        if(files==null){
            deleteFile(path);
            return;
        }
        for(String str:files){
            str=fPath+&quot;/&quot;+str;
            file=new File(str);
            if(file.isDirectory()){
                deleteDirectory(str);
            }else if(file.isFile()){
                deleteFile(str);
            }
        }
        deleteFile(path);
    }else if(file.isFile()){
        deleteFile(path);
    }
}

/**
 * 删除指定路径的文件
 * @param filePath
 *        文件路径
 */
public static void deleteFile(String filePath){
    Log.w(&quot;test&quot;,&quot;deleteFile:filePath=&quot;+filePath);
    if(filePath==null){
        return;
    }
    File file=new File(filePath);
    if(file.exists()){
        file.delete();
    }
}


/**
 * 获取文件夹下面的所有文件
 * @param path
 * @return
 */
public static String[] getDirectoryFiles(String path){
    if(path==null){
        return null;
    }
    File file=new File(path);
    if(!file.exists()){
        return null;
    }
    String[] files=file.list();
    if(files==null || files.length&lt;=0){
        return null;
    }
    return files;
}
</code></pre><p>}</p>
<p><code>`</code></p>

      
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